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Area Codes > 503 > Central Office Codes

Exchange Rate Center State Operating Company
503-710 WOODBURN OR NEXTEL COMMUNICATIONS, INC.
503-711 OR
503-712 BEAVERTON OR VERIZON NORTHWEST INC.-OR
503-713 BEAVERTON OR GLOBAL CROSSING LOCAL SERVICES,INC.-OR
503-714 DAYTON OR GLOBAL CROSSING LOCAL SERVICES,INC.-OR
503-715 PORTLAND OR GLOBAL CROSSING LOCAL SERVICES,INC.-OR
503-716 BEAVERTON OR MCIMETRO, ATS, INC.
503-717 SEASIDE OR QWEST CORPORATION
503-718 BEAVERTON OR ESCHELON TELECOMM OF OREGON, INC. - OR
503-719 PORTLAND OR LCW WIRELESS LICENSE, LLC
503-720 PORTLAND OR BLUE LICENSES HOLDING, LLC
503-721 PORTLAND OR QWEST CORPORATION
503-722 CLACKAMAS OR QWEST CORPORATION
503-723 CLACKAMAS OR QWEST CORPORATION
503-724 PORTLAND OR BLUE LICENSES HOLDING, LLC
503-725 PORTLAND OR QWEST CORPORATION
503-726 BEAVERTON OR INTEGRA TELECOM OF OREGON, INC. - OR
503-727 PORTLAND OR QWEST CORPORATION
503-728 CLATSKANIE OR VERIZON NORTHWEST INC.-OR
503-729 PORTLAND OR CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR
503-730 PORTLAND OR CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR
503-731 PORTLAND OR QWEST CORPORATION
503-732 BEAVER CRK OR TIME WARNER TELECOM OF OREGON, LLC-OR
503-733 PORTLAND OR QWEST CORPORATION
503-734 PORTLAND OR TIME WARNER TELECOM OF OREGON, LLC-OR
503-735 PORTLAND OR QWEST CORPORATION
503-736 PORTLAND OR QWEST CORPORATION
503-737 PORTLAND OR QWEST CORPORATION
503-738 SEASIDE OR QWEST CORPORATION
503-739 SEASIDE OR BLUE LICENSES HOLDING, LLC
503-740 PORTLAND OR T-MOBILE USA, INC.
503-741 ASTORIA OR NEXTEL COMMUNICATIONS, INC.
503-742 CLACKAMAS OR QWEST CORPORATION
503-743 AUMSVLTRNR OR VERIZON NORTHWEST INC.-OR
503-744 CLACKAMAS OR TELEPORT COMMUNICATIONS GROUP, INC. - OR
503-745 PORTLAND OR ELECTRIC LIGHTWAVE, LLC DBA INTEGRA TELECOM - OR
503-746 BEAVERTON OR AT&T LOCAL
503-747 BEAVERTON OR AT&T LOCAL
503-748 BEAVERTON OR INTEGRA TELECOM OF OREGON, INC. - OR
503-749 AUMSVLTRNR OR VERIZON NORTHWEST INC.-OR
503-750 PORTLAND OR T-MOBILE USA, INC.
503-751 DALLAS OR QWEST CORPORATION
503-752 PORTLAND OR SPRINT SPECTRUM L.P.
503-753 PORTLAND OR SPRINT SPECTRUM L.P.
503-754 PORTLAND OR SPRINT SPECTRUM L.P.
503-755 JEWELL OR CENTURYTEL OF OREGON, INC.
503-756 PORTLAND OR SPRINT SPECTRUM L.P.
503-757 PORTLAND OR SPRINT SPECTRUM L.P.
503-758 PORTLAND OR CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR
503-759 MOLALLA OR MOLALLA TELEPHONE CO.
503-760 PORTLAND OR QWEST CORPORATION
503-761 PORTLAND OR QWEST CORPORATION
503-762 PORTLAND OR QWEST CORPORATION
503-763 SALEM OR QWEST CORPORATION
503-764 PORTLAND OR ESCHELON TELECOMM OF OREGON, INC. - OR
503-765 CLACKAMAS OR TELEPORT COMMUNICATIONS GROUP, INC. - OR
503-766 GRESHAM OR TELEPORT COMMUNICATIONS GROUP, INC. - OR
503-767 STAYTON OR STAYTON COOPERATIVE TELEPHONE CO.
503-768 PORTLAND OR QWEST CORPORATION
503-769 STAYTON OR STAYTON COOPERATIVE TELEPHONE CO.
503-770 CHARBONNEU OR TIME WARNER TELECOM OF OREGON, LLC-OR
503-771 PORTLAND OR QWEST CORPORATION
503-772 PORTLAND OR QWEST CORPORATION
503-773 NORTH PL OR TIME WARNER TELECOM OF OREGON, LLC-OR
503-774 PORTLAND OR QWEST CORPORATION
503-775 PORTLAND OR QWEST CORPORATION
503-776 AURORA OR TIME WARNER TELECOM OF OREGON, LLC-OR
503-777 PORTLAND OR QWEST CORPORATION
503-778 PORTLAND OR QWEST CORPORATION
503-779 SALEM OR INTEGRA TELECOM OF OREGON, INC. - OR
503-780 PORTLAND OR BLUE LICENSES HOLDING, LLC
503-781 PORTLAND OR BLUE LICENSES HOLDING, LLC
503-782 PACIFIC CY OR LEVEL 3 COMMUNICATIONS, LLC - OR
503-783 STFRD-SNDY OR INTEGRA TELECOM OF OREGON, INC. - OR
503-784 PORTLAND OR BLUE LICENSES HOLDING, LLC
503-785 CLACKAMAS OR QWEST CORPORATION
503-786 CLACKAMAS OR QWEST CORPORATION
503-787 FALLS CITY OR QWEST CORPORATION
503-788 PORTLAND OR QWEST CORPORATION
503-789 PORTLAND OR BLUE LICENSES HOLDING, LLC
503-790 PORTLAND OR QWEST CORPORATION
503-791 ASTORIA OR BLUE LICENSES HOLDING, LLC
503-792 GERVAIS OR GERVAIS TELEPHONE CO.
503-793 PORTLAND OR NEXTEL COMMUNICATIONS, INC.
503-794 CLACKAMAS OR QWEST CORPORATION
503-795 PORTLAND OR QWEST CORPORATION
503-796 PORTLAND OR QWEST CORPORATION
503-797 PORTLAND OR QWEST CORPORATION
503-798 SALEM OR ELECTRIC LIGHTWAVE, LLC DBA INTEGRA TELECOM - OR
503-799 PORTLAND OR BLUE LICENSES HOLDING, LLC
503-801 TILLAMOOK OR BLUE LICENSES HOLDING, LLC
503-802 PORTLAND OR ELECTRIC LIGHTWAVE, LLC DBA INTEGRA TELECOM - OR
503-803 PORTLAND OR BLUE LICENSES HOLDING, LLC
503-804 PORTLAND OR BLUE LICENSES HOLDING, LLC
503-805 PORTLAND OR BLUE LICENSES HOLDING, LLC
503-806 PORTLAND OR BLUE LICENSES HOLDING, LLC
503-807 PORTLAND OR BLUE LICENSES HOLDING, LLC
503-808 PORTLAND OR ELECTRIC LIGHTWAVE, LLC DBA INTEGRA TELECOM - OR
503-809 NORTH PL OR SPRINT SPECTRUM L.P.
503-810 PORTLAND OR T-MOBILE USA, INC.